Agriculture	74
Analytical chemistry	5
Antennas and waveguides	10
Astronomy	18
Athletics	1
Automated equipment	30
Aviation	12
Building materials	1
Building structures	4
Chemistry	13
Coal	11
Commerce	1
Communications	49
Computer numerical control	2
Computers	5
Construction	125
Criminal law	2
Cultural studies	9
Demography	1
Dosimetry	4
Earth sciences	76
Economics	3
Electric motors	2
Electric traction	3
Electrical engineering	1
Electronics	114
Entomology	2
Environment	1
Food industry	1
Football	2
Forestry	3
Gear train	54
General	93
Handball	2
Health care	17
High energy physics	17
Hobbies and pastimes	8
Hydrology	1
Ice hockey	1
Immigration and citizenship	3
Industry	111
Information technology	23
International Monetary Fund	3
Isolation	1
Life sciences	43
Lighting other than cinema	2
Loading equipment	2
Marketing	4
Materials science	5
Mathematics	4
Measuring instruments	12
Mechanic engineering	131
Mechanics	3
Medical	142
Medical appliances	32
Metallurgy	131
Microscopy	1
Microsoft	12
Mineral products	2
Mineralogy	1
Municipal planning	10
Natural resourses and wildlife conservation	9
Natural sciences	25
Nuclear physics	9
Packaging	12
Paleontology	2
Paragliding	4
Pest control	1
Physical sciences	4
Physics	5
Piezoelectric crystals	1
Power electronics	4
Power lines	7
Radiation	28
Radio	1
Remote sensing	14
Sailing	2
Satellite communications	4
Scientific	93
Skiing	1
Social science	1
Sound recording	1
Surveying	2
Table tennis	3
Technology	281
Telecommunications	1
Tennis	1
Textile industry	9
Transport	314
Travel	3
United Nations	5
Volleyball	1
Water resources	1
Welding	2
Wind Energy	2
Wood processing	2


angle abbr.
gen.	knuckle
chem.	square; summit
cultur.	triangle
law	corner
math.	plane angle; dihedral angle
tech.	argument; angle; bearing